Lily nodded, but since Narcissa didn't seem inclined to converse -- and she didn't blame her, really -- she'd join in the silence as well. She was glad it wasn't far, because she'd never dealt well with uncomfortable silences and this one was headed that way.
She decided she'd tell the others once she got back to the flat, though beyond that ... she wasn't going to broadcast it. She was sure Narcissa would use the boards if she wanted to contact anyone else, and they could explain everything at the welcome center. So really, Lily felt no compulsion to try to take care of any of that.
Once they had turned onto the street the center was on, she gestured toward it. "That building, there," she said. She assumed Narcissa wouldn't want her company longer than necessary, but she'd wait to ensure she made it in all right all the same.